This one is presumably a kind of bamboo; understand there are several species of bamboo in the Osho Teerth Park
A palm and not a bamboo. Closest I go is Roystonia regia, but will have to be looked more critically.
This is certainly not a bamboo species but a palm tree
The one in the foreground is a palm, the one in the background is a bamboo clump.
Looks different from images at Roystonea regia
Looks like a Pseudophoenix